I'm currently working on my resume and had a few questions that I hope someone could answer:

My resume is currently 2 pages, is this fine? Currently the sections I have are: Education, Work Experience, Volunteer Experience and Languages.

I worked all throughout college, so should I include all of the jobs? My freshman/sophomore year I was working as a sales associate and manager at different stores, and then during my sophomore year I was able to secure an office job which I stayed in until graduating college. Should I include the sales associate and manager position?

I wrote a thesis in college, should I include a brief abstract of it?

Any rules regarding type of font, size of font and margins?

And lastly, I've read that we should include a Personal Interests section. Is this true?

Thanks guys!